Cornyn and Paxton bury each other in negative ads as Senate GOP runoff enters final stretch
Paxton is countering Cornyn's better-funded campaign with ads attacking the incumbent's record and positions.

SOURCE CHECK
TAP FOR WHYCredibility rates San Antonio Current, where this article appeared. The other scores rate the article itself.
The page republishes reporting credited to The Texas Tribune, an established nonprofit newsroom, and clearly identifies the reporter and original publisher. The page provides transparent attribution, though it is not the original reporting outlet.
- Source type — The reporting is credited to an established regional nonprofit newsroom.
- Author attribution — The reporter is named, along with The Texas Tribune.
- Transparency — The page states that the article first appeared on The Texas Tribune and includes its funding disclosure.
The article uses named sources, polling and spending data, and quotations from both campaigns and an outside strategist. It provides useful context and competing claims, though the polls are limited and much of the campaign criticism comes from interested parties.
HOW WE SCORE ↗The article details attacks from both campaigns and includes polling and spending context, with comments from both sides and an outside strategist. The campaigns' own claims dominate some sections, and the article does not independently verify every advertising allegation.
- Counterarguments presented — Both campaigns' attacks and claims about the contest are represented.
- Source diversity — Includes campaign representatives, an outside strategist and polling or tracking data.
- Omitted context — Several allegations appear as ad claims and are not independently resolved in the story.
- Loaded language — Some vivid descriptions are used, but the piece generally attributes the most charged claims.
The report describes campaign spending, advertising and polling with claims attributed to their sources. Its critical descriptions of campaign ads are presented as reporting rather than an endorsement of either candidate.
- Language tone — Mostly descriptive language, with campaign accusations attributed to the ads or speakers.
- Source selection — Includes voices connected to both campaigns and an outside strategist.
- Framing — Focuses on the ad and spending contest rather than advocating for either candidate.
Cites Texas Tribune
This article cites Texas Tribune as its original publisher. ChamberLight has not verified that it is a republication, so the scores are San Antonio Current's own.
58 stories · 78–81 · updated Oct 7, 2026
This is Texas Tribune's own score. The Source Check scores are for San Antonio Current and this article.
John Cornyn and Ken Paxton are escalating negative advertising in the Texas Republican Senate runoff, with pro-Cornyn groups still spending substantially more. The story describes their campaign messages, polling and fundraising as early voting approaches.
Pro-Cornyn groups had spent more than four times as much as pro-Paxton forces through Wednesday, according to AdImpact, though the gap had narrowed since the March primary. Ads from both sides have largely attacked the other candidate; the article reports that Cornyn also ran a positive ad touting border-security efforts and law-enforcement endorsements.
The campaigns cite conflicting polling: Paxton's side released internal numbers showing him ahead, while a University of Houston survey put him three points ahead. The article also reports fundraising totals for Paxton, Cornyn and Democratic nominee James Talarico, and notes that President Donald Trump had not endorsed either Republican.
Community verdict
10 VOTESPeople in this story
SWIPE →Texas attorney general and Republican Senate runoff candidate running ads against John Cornyn.
Incumbent senator and Republican Senate runoff candidate whose campaign and allies are running ads against Ken Paxton.
Cornyn's version of this story ↗Democratic Senate nominee whose fundraising is compared with the Republican candidates'.
President who has not endorsed either candidate in the Republican runoff.
Dallas-based Republican strategist quoted about runoff advertising.
Former House speaker depicted in a Paxton campaign ad attacking Cornyn.
U.S. representative who finished third in the March Republican primary.
Part of a bigger story
7 OUTLETSJohn Cornyn and Ken Paxton are exchanging negative ads in the final stretch of the Texas Republican Senate runoff, with Paxton challenging incumbent Cornyn. Left-leaning outlets describe Paxton’s ads as a response to Cornyn’s better-funded campaign, including attacks on the incumbent’s record and positions. Center outlets likewise cover mutual attack ads, while also detailing the spending gap, polling and fundraising.
- ARTICLES
- 7
- OUTLETS
- 7
- AVG CRED
- 77
Discussion · 0
Loading comments…





